Mechanism for transmitting power from car-axles.



No. 814,293. PATENTED MAR. 6, 1906.

` D. E. JOHNSON. MBGHANISM FOR TRANSMITTING POWER FROM GAR AXLES.

APPLIOATII FILED JULY 7. 1005.

SHEETS-BEBE? 1.

PATENTED MAR. 6, 1906.

D. E. JGESSGN. MEGHANISM FOB. TRANSMITTINS PUWER. FRUM GAR AXLE nrmejrnol rma JULI 'r. 1906.

i SHEETS-SHEET 2.

PATENTED MAR. 6, 1906.

APPLIOATIQN FILED JULY 7. 1905.

4 SHEETS-SHEET 3.

m'. @ym

PATBNTED MAR. 6, 1906,

D. E. JHNSN. MEOHANISM FOR TRANSMITTING POWER FROM CAR AXLES.

APPLISATIUN FILED JULY 7. 1905.

4 SHEETS-SHEET 4.

UNITED STATESY PATENT OFFICE.

DELBERT E. JOHNSON, QF CHICAGO, ILLINOIS.

specification er meer remt.

' Patented :nach e, 190e.

Application led July 7,1006. Beriil He- 288,814.

To all whom it may concern:

Be it known that I, DELBERT E. Jonsson, a citizen of the United States, residing at Chicago, in the county of Cook end State of Illinois, have invented new and useful Im rovements in Mechanism for Transmit i ower from ,Car-Axles, of which the following is 'a` specification, reference being had to the accompenyi'ng drawings, forming s part thereof. T e purpose of this invention 1s to provide improved means for transmitting power from the axle of the car' to an mechenlsm mounted thereon and particuirly to facilitate the mount' and dismounting of the transmittmlg devices and the repairof the same. t consists of the features of construction set out in the claims.

In the drawings,-Figure 1 is a perspective view of a construction embed 'my invention shown in relation to the jacent rtions of the car and power-imparting w, eel. Fig. 2 is a sectional side elevation, section he'- ing made in a vertical plane transverse to the car-axle through the same and the oor of the car. Fig. 3 is a section at theline 3 3 on Fig. 2,. Figs. 4 and 5 are perspective views showing certain of the parts disassembled for the purpose of illustrating mode of essern-Y e portion of the floor of the caradjacent to the evices constituting and pertaining t0 the invention is seen at 1. 2 is the axle from which power is derived.

A3 is the power-transmitting wheel on the Ihave shown this invention applietpecicelly to the operation of a fan moun on the car for the purpose of forcing air circulation through ,the car.

4 is the fan-case, which is mounted rigidly with respect to the car-body:

5 is the fan-shaft, which is journiled in the case, the rotsry element 6 of the fari being keyed thereon., The fanshaft is adapted to be inserted en dwise into through the rot l fan-case an l element 6 of the fan in order to reach the w: |14* at the op Vte end from :that st whic itis en the power-,communicating 4wheel 3 .on the caraxle being nt,the inner .sn'de of fan-ease and Athe for transmitting power beingjtherefore orted at the inner side of c.the ease. The ia hesV at the outer end a pulley 7, through which` the rotary moved which 'it is to ment is derived, and the m intermediate this pulley and the power-.transmitting wheel 3, being n y constructed so as to accommodate itself to the v posi 1tion of the car-axle, is mounted on s n er '10, which is necessarilypivoted about t e axis of the shsft 5, so that its accommodating movement shall not interfere with proper contact of the-pulls 7` with the 'immediate drivig-pulley 14. or the purnose of 4such pivo mountin there is dprovided rigid with the fen-cese a ho ow stu 8, which protrudes korn the fan-case at the side and u on which the hanger '10 isfpivotally hung. or the p' ose o so mounting the henger, .and pgrtic arly for the puposeof dapting '1t to thus mounted en without interfering themo unt1ng .oi the fan-case upon the car. and without dissecti'ngthe ha er or uw... 1n any respect. the mec nism thereon an for the urpo l at the same time-of rendering the E r secure in its pivotalconnecteon with the '-case when in operation, the hollow stud 8 has at the ,outer end three radially -x'ojec sectoral 1 8* 8* 8* and the anger is 'shed at its upper en at the 1nner side with s ivot-sleeve 11, which has three longitudinal channels 111 1.1* 1 1, corresponding in circumferential distribution, but not in circumferential tion, as hereinafter explained, to the distributlon of, the radial sectoral lugs 8*V and of dimensions such as to permit the lugs to through them as 'the henger-sleeve is vauced endwise onto the stud which constitutes its pivot.' Thesleeve is of such l as to be accommodated on the stud b ofthe rediel l 8*. The position of the lugs 8* is circ erentialiy removed about sixty defrom the position of the channels 11 of t e hanger-sleeve when thehanger is at o erative, position,

sleeve over the lugs be seatedY lfor pivoting the around about hangerthe'latt'er mustbe l i einen and 'six d from its no e;

m 'the er1" brought hac or owed Y vit toits normal "tion, 1t becomes fdgkedlon the 'pivot-stud ylthe lugs 8 stending, respectively between the endso the consecutive c e s in thesleeve' msteadof' `1n line with them, respectively, and the hanger so that inY order to pass t e to reach the journal upon Yto come sek by can be disengaged from the stud only by swinging it up again sixty degrees to the position at which it was entered, and this is prevented notonly by the fact that the hanger tends by gravity to occupy the normal position, but also by the fact that, as hereinafter explained, it is held in that position with the power receiving friction pulley 14 against the power-transmitting wheel 3 of the axle.

The hanger 1() is constructed so as to be as rigid as possible against the tendency to distortlon, which may be caused by the side strains to which it is exposed in carrying the A power-transmitting mechanism, and for this* 1.15 pu se itcomprises two side bars 12 and 12, i Y rig' connected across the lower end b the heavily-ribbed web 12". The pivot s eeve 1'1 is at the upper end of the side bar 12, and at the upper end of the opposite side bar 12EL zo there is provided a bearing 13 for the extreme 'inner end of the shaft 5, so that the pulley 7 intervenes between that bearing and the end of the ivot-s'tud 8 on which the sleeve 11 is I journaled, and-in order to permit the appli- `2 5 cation and withdrawal of the hanger with the garts mounted therein in the manner above escribed*that is4 to say, without dissecting the structure in an other respect, but merely by swinging t e hanger about sixty 3o degrees away from its normal operating osition in order to bring the longitudinal c annels of the sleeve 11 in line with the radial sectoral lu 8-the diameter of the pulley 7 is enough ess than-the inner diameter of the 3 5 sleeve to permit the sleeve to ass out over the pulley. For further stifl'ening the hanger the outer bearing ,13 is connected with the sleeve 11 by a web or arch 9, which-extends above the pulley 7 across the ap formed in 4o the hanger for the accommo ation of that pulley. The hanger is thus a complete foursided' structure encompassing t e `wheels a journaled therein.

The only other wheelnecessary for the purpose of transmitting the power in addition to the pulle 7 is the frictionulley 14, which is journal on a shaft 15,10 ged m seats 16 16,

,which are contained in the side bars 12 12, said side vbars being "cylindrical and hollow 5o from the lower end up to a pointabove the highest osition necessary to be occupied by the sha 15Xas seen in Fig. 3, and in the cavity of these hollow side ibars, below the seats 16 16, respectivel there are rovided 5 5 springs 17 17, upheld1 by threaded bo ts 18 18, vscrewed into the lwer ends of the side bars for tensioning the springs as ma.4 be desired,

. and for locking these tension-bo ts after adjusting the tension as desired 'in any instance 6o they are each provided with a slot 18", and

the side vbars arejftransversel perforated to receive cotter-pins 19 19, which take through the slots 18'* thus ermitting lthe tensioni bolts to be adjusted y half-turn steps or degrecs to the extent 'of the length of the slot.

For holding the friction-pulley 14 a ainst the power,- transmitting wheel 3 the anger is connected -b chains 20 2() at the opposite sides, exten ing to a windlass 21, mounted on the car, sprin s 22 being inter osed in the chains between t e windlass an their connection to the hanger,A so that the pressure of the pulley 14 against the wheel 3, produced by winding the chain upon the windlass to any extent, shall be elastic, as is not only desirable for the purpose of properly transmitting power, but is also necessary m order to permit the hanger to accommodate itself to the changing osition of the wheel 3, which will occur in t e longitudinal movement of the car-body relative to the truck in travel of the car.

The face of the ower-transmittin wheel 3 is curvedabout t e vertical axis o the cartruck for a purpose which is familiar in this art; but as 1t may be impracticable to make -gsaid wheel 3 broad enough to accommodate the maximum cha e of a lar osition of the truck with resixiegct to tnligeucar Iiivhich will occur in rounding the shortest curves around which the car can be moved and in assing such short curves the pulley 14 Wil sometimes be carried oil the face of thewheel 3. In such case in the absence of preventative means the action of the springs 22 would cause the hanger to swing toward the axle 2, so as to bri the pulley 14 alongside the power-transmitting wheel 3, and when the car passed onto astraight track the truck coming back to direct transverse position would cause the Wheel 3 to tear oif the hanger or break the pulley 14 and destroy the powertransmittin structure. To prevent this result, the puey 14 is made about three times as wide as necessary for the purpose of operatin on the pulley 7 and is beveled or tapere off conically at both sides of about forty-five degrees,the conical slo es 14h14 (see Fig. 3) being thereby of su cient extent in the direction of the axis of the pulley to cover the maximum ra' e of movement of the edge or side plane o the Wheel 3 in its most extreme change of osition due to the shortest curve around wihich the car can ass, s o that even in such extreme cases t e bevel or conical slo e of the pulley 14 would 'en age the edge of t e wheel 3 as the car passe oil' from the curve and while the truck was turning back to normal position, and with the assistance afforded b the rotation of the wheel 3 in contact wit this conical slo e of the pulley 14 the hanger will be crowde back, so that said pulley will come again into proper bea of its middle portion of full diameter upon the face of the wheel 3. In order to prevent the hanger from swinging any further than necessar in order to maintain the bearing of the u ley 14 upon the wheel 3 throughout all or inary curvatures of track and so as to reduce as far at an angle IIO communicating wheel on the protruding portion of such shaft; a hangerpivoted on the shaft-bearing element about the shaf t; powertransmitting means on the hanger coperating with the power-Wheel on the axle for driving the wheel on the shaft, the ivotal connection of the hanger to the s aft-bearing element being made bya sleeve on the hanger and a hollow pivot-stud on the shaft-bearing element through which the shaft protrudes, the stud hav' at the end a radial pro'ection, and the sleevlelavin an interior longltudinal channel adapted to be traversed by-the proj ection when the sleeve and stud are brought into pivotal relation` such channel and projee-tion bein out of line at the operative 'osition of the anger, and the diameter o the sleeve, exclusive of its longitudinal channel, being such a's to permit the Wheel on the shaft to pass through it.

5. In a device for the ur combination with a caro fan-case mounted on the ose indicated., in y and car-axle, a car-body; a fanshaft journaled in the case and protruding therefrom at the inner side, the fan-case having a pivot-stud projecting at that side concentric about the protruding shaft a powercommunicating wheel on the car-axle; a hanger having a sleeve by all suspended from the stud; a pulley journa ed in the han er, adapted to be frictionally e aged by t e power-wheel on the axle; a whee on the shaft at the end of the stud., which derives power from the pulley on the h er, the hanger having a bearing for the sliiiilfgt at the opposite side of the shaft-wheel from the stud, and an arch connecting said bearing with the hanger pivot-sleeve.

6. In a device for the purpose indicated, in combination with the f -case mounted rigidly on the car-body and having a laterallyprojecting pivot-stud, a hanger pivotal] suspended on the stud; a Wheel on the sha t and a wheel in the han er which are operative] engaged when the anger is thus suspended which it is pivot' the shaft-wheel being' of less diameter than the stud at the pivot-bearing of the hanger thereon, whereby said hanger pivot-bearing is adapted to pass over the wheel on the shaft for reaching its journaggon the stud, said pivotbearing being longitudinally ooved, and the stud having a projection a apted to pass through the groove, said groove and projection being out of line at normal position of the hanger.

7. In a device for the purpose indicated, in combination with the fan-case rigidly mounted on the car-body and having a shaft journaled in it, a rotating element Within the fancase detachably keyed to the shaft; powertransmitting means and a hanger in which they are 'ournaled pivotally mounted on the outside ol the case about the axis of the shaft and removable bodil therefrom, the shaft being adapted for en Wise Withdrawal in the same direction, the fan-case having a peripheral aperture throu h which the rotatable element may be wit drawn when detached from the shaft, and a removable cover for such aperture.

8. In a device for the purpose stated, afancase having integrally a chamber for the rotating element; induct-passa es leading from the center outside such cham er and merging in a single passage beyond the circumference of such chamber, said chamber being extended tapering and symmetrical about a plane radial to the axis of the rotating element, and terminating in a pipe connection, and having a peripheral aperture for the admission and removal of the rotating element, anil a detachable cover for such aperture.

In testimony whereof I have hereunto set my hand, in the presence of two witnesses, at Chicago, Illinois, this 1st day of March, 1905.

DELBERT E. JOHNSON In presence ofk M. GERTRUDE ALL. FREDK. G. FISCHER 

